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Physiological relationships between dwarf mistletoe and ponderosa pine

Creator:: McDowell, Larry Leon
Abstract:: A comparative study was made of Pinus ponderosa Laws, and Arceuthobium campylopodum Engelm. f . campylopodum to determine (1) whether or not the parasite or parasitized tissues accumulate abnormal concentrations of minerals, (2) whether or not there was evidence of a blockage of mineral translocation in the phloem because of...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE THESIS OF LARRY LEON McDOWELL for the

Etiological studies on foot rot of wheat caused by Cercosporella herpotrichoides Fron.

Creator:: Byther, Ralph S.
Abstract:: Abundant conidial production occurs from colonized straws and plants infected with Cercosporella herpotrichoides Fron during the cool moist months of the growing season. Experiments were designed to study the survival, inoculum potential and competitive saprophytic ability of conidia in soil. Laboratory results indicated that cool moist soil favors the saprophytic...
Resource Type:: Dissertation
Full Text:: BIBLIOGRAPHY 124 LIST OF TABLES Table Page 1. Influence of temperature on conidial germination in s

Effect of kraft mill effluent on structure and function of periphyton communities

Creator:: Williams, Harvey Dean
Abstract:: Raw and biologically stabilized Kraft mill effluents were introduced into laboratory artificial streams at a ratio of 15 ml per liter of water over a two year period. Effluent from the stabilization pond of a second mill was introduced at concentrations of from 5 to 40 ml per liter of...
Resource Type:: Dissertation
Full Text:: - cantly more abundant and S. ulna was less abundant in streams re- ceiving stabilized effluent from mill

A G-type Lectin Receptor-like Kinase Associated with Septoria Canker Resistance and Susceptibility Described using Multi-omics and Biotechnology

Creator:: Lenz, Ryan R.
Abstract:: Managers of forest and plantation ecosystems are encountering growing problems involving plant pathogens and the expanding geographic ranges of these pathogens. Historically unexposed stands are exceptionally vulnerable when a non-native pathogen is introduced because these pathogens can cause devastating disease in a host population that lacks co-evolved resistance mechanisms. One...
Resource Type:: Dissertation
Full Text:: relates to resistance and susceptibility mechanisms deployed in poplar stems in response to S. musiva

Plastome phylogenomics in the genus Pinus using massively parallel sequencing technology

Creator:: Parks, Matthew Benjamin
Abstract:: This thesis summarizes work completed over the previous four years primarily focusing on chloroplast phylogenomic inquiry into the genus Pinus and related Pinaceae outgroups using next-generation sequencing on Illumina platforms. During the time of our work, Illumina sequence read lengths have essentially been limited to 25 to 100 base pairs,...
Resource Type:: Dissertation
Full Text:: Sci., 163:737-747. Gernandt DS, Hernández-León S, Salgado-Hernández E, Rosa JAPdl. 2009

Community Ecology and Population Genomics of Rhizopogon in the Madrean Sky Island Archipelago

Creator:: Piña Páez, Carolina G.
Abstract:: Anthropogenic induced climate change is predicted to alter distribution of existing plant populations. As plants migrate over space and time, populations often fragment and contract, affecting basic elements of population dynamics (e.g., population size, gene flow, genetic diversity, etc.). Little is known, however, how these impacts on plant species will...
Resource Type:: Dissertation
Full Text:: , Víctor, Bruno, Kathy, Calel, Camila M, Jenny, Ricardo, Fer, Majo, Emma, Melissa, Arturo, and Lluvia. To

Characterization of the transition to the progamic phase in Zea mays pollen

Creator:: Smyth, Johanna C.
Abstract:: The transition of mature pollen to the progamic phase represents an important step in the regulation of plant sexual reproduction. The progamic phase encompasses the initiation of pollen tube germination, growth of the pollen tube through the stigma (the silk in maize) and concludes with fertilization of the female gametophyte....
Resource Type:: Dissertation
Full Text:: in s Germinated Ruptured Not Germinated 7 30% of species are trinucleate at pollen shed

Physical factors affecting longevity and germination of seed of Western dwarfmistletoe (Arceuthobium campylopodum Engelm. f. campylopodum)

Creator:: Beckman, Kent Mardsen
Abstract:: Longevity and germination of seed of western dwarfmistletoe (Arceuthobium campylopodum Engelm. f. campylopodum) of ponderosa pine (Pinus ponderosa Laws.) was investigated to determine: 1) the influence of humidity and temperature on seed viability and deterioration during storage; 2) the physiology of seed dormancy; 3) the composition of seed reserve food...
Resource Type:: Dissertation
Full Text:: CAMPYLOPODUM ENGELM. F. cAMPYLOPODUM) Abstract approved (Major profe s sor ) Longevity and germination of

Phylogenetics and genomic patterns of speciation in Pinus with an empahsis on subgenus Strobus

Creator:: Syring, John V.
Abstract:: Data from nuclear ribosomal internal transcribed spacer regions (nrITS) and chloroplast DNA (cpDNA) have failed to resolve phylogenetic relationships in Pinus. To provide greater interspecific resolution, five low-copy nuclear genes were developed from mapped conifer anchor loci. Four genes were sequenced from species representing all Pinus subsections. Individual loci do...
Resource Type:: Dissertation
Full Text:: rbcL. Annals of the Missouri Botanical Garden 80: 528-548+550-580. Chaw, S. M., A. Zharkikh, H. M

Seeing Genes: Multiscale Phenotyping Reveals Gene Functions in Maize Pollen

Creator:: Warman, Cedar D.
Abstract:: Plant sexual reproduction requires a broad array of molecular mechanisms to proceed successfully. Some of these mechanisms are well-studied, but our knowledge of them as a whole is fundamentally incomplete. Pollen tube growth is a key part of this process, facilitating the delivery of the sperm cells to the female...
Resource Type:: Dissertation
Full Text:: approaches first require digital representations of the phenotype(s) of interest, generally in the form of

ScholarsArchive@OSU

Physiological relationships between dwarf mistletoe and ponderosa pine

Etiological studies on foot rot of wheat caused by Cercosporella herpotrichoides Fron.

Effect of kraft mill effluent on structure and function of periphyton communities

A G-type Lectin Receptor-like Kinase Associated with Septoria Canker Resistance and Susceptibility Described using Multi-omics and Biotechnology

Plastome phylogenomics in the genus Pinus using massively parallel sequencing technology

Community Ecology and Population Genomics of Rhizopogon in the Madrean Sky Island Archipelago

Characterization of the transition to the progamic phase in Zea mays pollen

Physical factors affecting longevity and germination of seed of Western dwarfmistletoe (Arceuthobium campylopodum Engelm. f. campylopodum)

Phylogenetics and genomic patterns of speciation in Pinus with an empahsis on subgenus Strobus

Seeing Genes: Multiscale Phenotyping Reveals Gene Functions in Maize Pollen

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